Reversible socket-wrench.



PATENTED MAY 10, 1904.

' v W.W.MURGH. REVERSIBLE-SOCKET WRENCH.

mw u@ HMO N NQ@ L* N n w? //l N4 FN APPLICATION FILED AUG.7, 1903.

N0 MODEL.

UNITED STATES Patented May 10, 1904.

PATENT OEEIcE.

WILLIAM I/VARNER MUROH, OF NEW YORK, N. Y., ASSIGNOR OF ONE-IIALF TO SAMUEL SIRAGUE HOLDEN, OF NE YORK, N. Y.

REVERSIBLE SOCKET-WRENCH.

SPECIFICATION forming part of Letters Patent NO. 759,823, dated May 10, 1904.

Application filed ugut '7, 1903.

T0 all when?, it may concern:

Be it known that I, WILLIAM WARNER MUEGII, a citizen of the United States, and a resident of the city oi' New York, borough et' Brooklyn, in the county of Kings and State of NewYork, have invented a new and Improved Reversible Socket -I/Vreneh, of which the following is a full, clear, and exact description.

The object ol" the invention is to provide a new and improved reversible socket or nut wrench which is simple and durable in c0nstruction, easily manipulated, readily reversed, and more especially adapted for screwing axle-nuts on or oii' the axles.

The invention consists 0iE novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

Figure l is a longitudinal sectional side elevation of the improvement, and Fig. 2 is a sectional plan view of the same.

The socket A is provided with a polygonal recess A Jfor engaging the nut or other article to be turned, and the said socket is provided at its inner face with a reduced portion A2, mounted to turn in a bearing B', formed in a head B, having ahandle O adapted to be taken hold of by the operator `for manipulating the wreneh,fas hereinafter more fully described.

On the face of the reduced portion A2 of the socket A is secured a ratchet-wheel I), fitting loosely within the bearing B` and engaged at the outer face by a cap E, having aflange E iitting onto the outer face of the head B, the 'said cap, ratchet-wheel I), and socket A being preferably fastened together by screws or rivets F, as plainly indicated in the drawings, so that the socket A and connected parts are free to turn on the head B in either a forward or backward direction, as hereinafter explained.

The teeth D ot' the ratchet-wheel D have each side formed with two bevels D2 and D3, extending inwardly, as plainly indicated in Fig. 1, andthe said teeth are adapted to be Serial No. 168,627. (No model.)

engaged by a pawl G, mounted to slide lengthwise in the handle O and adapted to be given a half-turn in the said handle by the operator for reversing the pawl G to turn the ratchetwheel, and consequently the socket A, in a reverse direction whenever it is desired to do so. The pawl G extends in a longitudinal bore C', formed in the handle O, and the said pawl is provided with a reduced stem G', terminating at its outer end in a knob G2, the shank G:g of which is made polygonal in cross-section to engage a correspondingly-shaped recess or socket O2 at the outer end of the bore C' to hold the pawl G against turning as long as the shank G:i engages the said socket O2. Now when the operator pulls the knob G2 outward to disengage the shank from the socket O2 then the operator can give a half turn to the pawl G to reverse the saine relative to the teeth 1)' of the ratchet-wheel D. The pawl G is held normally in an innermost position-that is, in engagement with the teeth I)-by the action ot' a spring H, coiled on the stem G within the bore C', one end ot'. the spring resting on a collar I, fastened to the stem G', and the other end of the spring abutting against a collar I, having a transverse pin I iitting a longitudinal slot G4, formed in the stem G. The collar I rests against abearingl J', in which the stem G is litted to slide, the bearing being fastened in the bore O by set-screws J', screwing in the handle, as plainly indicated in Fig. l. Normally the spring H holds the pawl G in an innermost position for the pawl to engage thc teeth D; but the said spring allows the pawl to slide outward,when its beveled back glides over the bevel l)3 of an adjacent tooth on the return stroke of the han die; but this outward movement oi' the pawl G is not suiicient to disengage the shank G:i from the socket O, and consequently the pawl G is not liable to turn accidentally while using the wrench. When, however, the operator pulls the knob G outward to disengage the shank G8 from the socket O2 for reversing the position of the pawl G by giving a half-turn to the pawl, then the spring H is compressed, and as soon as the operator releases the knob G2 the spring returns the pawl to its innermost reversed position.

In using the device the nut or like article is engaged with the recess A of the socket A, and then the operator on swinging the handle C in the direction of the arrow a causes the pawl Gr to engage the bevel D2 of the first tooth on the ratchet-wheel D, thereby turning' the ratchet-wheel, and consequently the socket, to unscrew the nut from the axle, and when the operator swings the handle C backward in the inverse direction of the arrow a' then the back of the pawl G glides over the bevel D3 of the next rearward tooth, and consequently the socket A and the nut therein remain at a standstill during the return stroke of the hand'le and head. On the next forward stroke of the handle the above-described operation is repeated. When the nut has been unscrewed, it is held in the socket A, and when it is desired to again screw the nut up on the axle then the operator pulls the knob G2 outward and then gives a half-turn to the pawl, after which the pressure on the knob is released, so that the pawl G returns toits former position, but reversed, and consequently when the operator imparts a swinging motion tothe handle C in the direction of the arrow d then the pawl glides over the teeth D, and on swinging the handle in the reverse direction of the arrow a the socket A is turned, and

wilth it the nut, to screw the same up on the ax e.

When it is desired to remove the pawl G for repairs or other purposes, it is only necessary to loosen the set-screws J and to pull on the knob G2 to pull the entire pawl, the spring', and the collars I and Il out of the handle. In alike manner the pawl can be reinserted in the handle and the several parts placed in proper position relative to each other, after which the set-screws J are screwed up to hold the bearing J in position in the handle, and with it the parts of the pawl G.

The wrench is very simple and durable in construction and can be cheaply manufactured and easily reversed at any time to readily screw the nut on or ofi" the axle, as the case may be.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A wrench having a ratchet-wheel provided with teeth having two transverse beveled faces on each side, the faces on one side being similar to the Afaces on the other side, the corresponding faces at the outer end of a tooth converging as they extend outwardly and the corresponding inner faces of a tooth converging as they extend inwardly.

2. A wrench having a ratchet-wheel and a pawl for cooperating with the teeth of the wheel, said teeth each having two transverse beveled faces on each side, the corresponding faces at the outer end of a tooth converging' as they extend outwardly and the corresponding inner faces of a tooth converging as they extend inwardly, the bearing-face ofthe pawl being beveled inwardly to cause the same to meet in iiat engagement with the inner or root face of a tooth, when brought into engagement therewith, and the end of the pawl being formed with a bevel about parallel with the outer face of the next'tooth at the rear of the pawl when in the above position.

3. A reversible socket-wrench, comprising a handled head, a socket mounted to turn in the head and provided with a ratchet-wheel, the teeth of said ratchet-wheel each having' two transverse beveled faces on each side, the faces on one side being similar to the faces on the other side, the corresponding faces at the outer end of a tooth converging as they extend outwardly and the corresponding inner faces of a tooth converging as they extend inwardly, a reversible pawl for engaging the said ratchet-wheel, the pawl having a stem extending through the handle of said head, a spring on said stem for holding the pawl normally in engagement with the ratchet-wheel, means for withdrawing the pawl against the action of said spring to reverse the pawl, and means for holding the pawl in either of its positions.

4. A reversible socket-wrench, comprising a handled head, a socket mounted to turn in the head, and provided with a ratchet-wheel, a reversible pawl for engaging the said ratchetwheel, the pawl having a stem extending through the handle of said head, a knob on the outer end of said stem, provided with a polygonalshank adapted to engage a correspondingly-shaped socket in the said handle, a spring pressing said stem in a lengthwise direction, a bearing removably held in said handle and engaged by the stem of the socket, said stem having a longitudinal slot adjacent said bearing, a collar loosely mounted on said stem, and a transverse pin extending through said slot and engaging diametrically opposite sides of said collar, said collar being inter-, posed between the end of said spring' and said removable bearing.

A reversible socket-wrench comprising a handled head, a socket mounted to turn in the head and provided with a ratchet-wheel, a reversible pawl for engaging the said ratchetwheel, the pawl having a stem extending through the handle of the said head, a knob on the outer end of the said stem, provided with a polygonal shank adapted to engage a correspondingly-shaped socket in the said handle, a spring pressing the said stem in a lengthwise direction, and a bearing removably held in the said handle and engaged by the stem of the socket, as set forth.

In testimony whereof` I have signed my name to this speciiication in the presence of two subscribing' witnesses.

WILLIAM WARNER MURCH.

IVitnesses:

TivoTHY N. HOLDEN, SAMUEL S. HOLDEN.

TOO

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